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Technical Data Sheet
PartsTable / COMPONENT / 7557
7557 ✓ Verified by PartsTable
Hama · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include width: 150.0 MILLIMETERS NOMINAL MM, length: 200.0 MILLIMETERS NOMINAL MM, diameter: 0.204 INCHES NOMINAL IN, material: PLASTIC VINYL, thickness: 0.15 MILLIMETERS NOMINAL MM, body_style: STRAIGHT SHAPE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-186-3390, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
7557
NSN: 5340-00-186-3390
FSC: 5340
CAGE: 83930 — TRANSDIGM INC DBA ADEL WIGGINS GROUP DIV ADEL WIGGINS (USA)
SPECIFICATIONS
width150.0 MILLIMETERS NOMINAL MM
length200.0 MILLIMETERS NOMINAL MM
diameter0.204 INCHES NOMINAL IN
materialPLASTIC VINYL
thickness0.15 MILLIMETERS NOMINAL MM
body_styleSTRAIGHT SHAPE
shell_typeSOLID
overall_width1.750 INCHES NOMINAL IN
terminal_typeSCREW SINGLE MATING END SINGLE CONTACT GROUPING
overall_height1.343 INCHES NOMINAL IN
overall_length2.312 INCHES NOMINAL IN
shell_materialCOPPER ALLOY
NSN5340-00-186-3390
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7557 MFR: Hama ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL: ALUMINUM ALLOY 2024 BAND
•
STYLE DESIGNATOR: SINGLE LOOP
•
DIAMETER: 0.204 INCHES NOMINAL IN
•
LOOP INSIDE DIAMETER: 0.438 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALALUMINUM ALLOY 2024 BAND
OVERALL WIDTH0.500 INCHES NOMINAL IN
OVERALL WIDTH0.500 INCHES NOMINAL IN
STYLE DESIGNATORSINGLE LOOP
DIAMETER0.204 INCHES NOMINAL IN
LOOP INSIDE DIAMETER0.438 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY 2024 BAND
DIAMETER0.204 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END0.748 INCHES NOMINAL IN
MATERIAL THICKNESS0.032 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
A3046A4Upgraded Successor
successor cross-reference
successor
MILC8063TYPE1CLASSAUpgraded Successor
successor cross-reference
successor
7557Interchangeable
interchangeable cross-reference
interchangeable
414B638P1Interchangeable
Same NIIN cross-reference
interchangeable
MIL-DTL-8603Interchangeable
Same NIIN cross-reference
interchangeable
AN742D7Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7557?
7557 is a CONNECTOR,RECEPTACLE,ELECTRICAL manufactured by Hama.
What parts can replace 7557?
There are 6 known substitutes for 7557: A3046A4, MILC8063TYPE1CLASSA, 7557 and 3 more. Substitute compatibility should be verified for your specific system.
Is 7557 still available?
7557 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026